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Biology & Geology

Chapter 2 - Hormonal Coordination in Living Organisms

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Chapter 3 - Reproduction in Living Organisms

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Chapter 4 - Immunity in Living Organisms

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Chapter 5 - Molecular Biology - DNA Structure and Function

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Chapter 6 - Molecular Biology - RNA, Protein Synthesis and Genetic Engineering

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Quiz

Lesson 1 Quiz: Support in Plants and the Human Skeletal System

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1.
A transition element whose +5 oxidation state compound (V2O5) is widely utilized as an industrial catalyst in the Contact Process for sulfuric acid manufacturing and as a colorant in ceramics is:
Scandium (21Sc)
Manganese (25Mn)
Cobalt (27Co)
Vanadium (23V)
2.
The indicator that exhibits a yellow color in acidic medium, blue in alkaline medium, and green in neutral medium is:
Bromothymol blue
Phenolphthalein
Litmus solution
Methyl orange
3.
The 7th term of the geometric sequence (2, 6, 18, ...) is:
486
162
729
1458
4.
The derivative of f(x) = 4 x3 - 5 x2 + 7 x - 9 with respect to x is:
f'(x) = 12 x2 - 10 x
f'(x) = 12 x2 - 10 x + 7
f'(x) = 12 x3 - 10 x2 + 7
f'(x) = 4 x2 - 5 x + 7
5.
The Ideal Gas Law combining all empirical gas relationships is mathematically formulated as:
P / V = n * R * T
P * V = m * g * h
P * V = n * R * T
P * T = n * R * V
6.
The serous synovial fluid present inside the synovial joints functions functionally to:
Facilitating cartilage sliding and reducing frictional forces and mechanical wear
Fixing ligaments to tendons
Block blood flow
Calcium secretion in bones
7.
Identical (monozygotic) twins arise genetically as a result of:
Fertilization of one egg by one sperm, then the resulting cell mass is divided into two parts that are identical in genetic makeup and sex.
Fertilization of one egg by two sperm
Fertilization of two eggs by two different sperm
Artificial parthenogenesis
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